Navigation

Changeset 08606c7159d799fa7f64452f89d777a8a3710738

Timestamp:

31/01/08 19:02:38 (10 months ago)

Author:

Rémi Denis-Courmont <rem@videolan.org>

git-committer:

Rémi Denis-Courmont <rem@videolan.org> 1201802558 +0000

git-parent:

[88e2bbbaaa6d2f0b3e2e23e4392607e05abf13f5]

git-author:

Rémi Denis-Courmont <rem@videolan.org> 1201802558 +0000

Message:

Files:

rbb352cd	r08606c7
110	110	* *pp_orig is the pointer that has to be freed afterwards.
111	111	*/
112		#if 0
113		#ifdef HAVE_POSIX_MEMALIGN
114		# define vlc_memalign(align,size,pp_orig) \
115		( !posix_memalign( pp_orig, align, size ) ? *(pp_orig) : NULL )
116		#endif
117		#endif
118		#ifdef HAVE_MEMALIGN
119		/* Some systems have memalign() but no declaration for it */
120		void * memalign( size_t align, size_t size );
	112	#if defined (HAVE_POSIX_MEMALIGN)
	113	static inline
	114	void vlc_memalign (size_t align, size_t size, void *pp)
	115	{
	116	return posix_memalign (pp, align, size) ? NULL : *pp;
	117	}
	118	#elif defined (HAVE_MEMALIGN)
	119	static inline
	120	void vlc_memalign (size_t align, size_t size, void *pp)
	121	{
	122	return *pp = memalign (align, size);
	123	}
	124	#else /* We don't have any choice but to align manually */
	125	static inline
	126	void vlc_memalign (size_t align, size_t size, void *pp)
	127	{
	128	unsigned char *ptr;
121	129
122		# define vlc_memalign(pp_orig,align,size) \
123		~~( *(pp_orig) = memalign( align, size ) )~~
	130	if (align < 1)
	131	return NULL;
124	132
125		#else /* We don't have any choice but to align manually */
126		# define vlc_memalign(pp_orig,align,size) \
127		(( *(pp_orig) = malloc( size + align - 1 )) \
128		? (void )( (((unsigned long)(pp_orig)) + (unsigned long)(align-1) ) \
129		& (~(unsigned long)(align-1)) ) \
130		: NULL )
	133	align--;
	134	ptr = malloc (size + --align);
	135	if (ptr == NULL)
	136	return NULL;
131	137
	138	*pp = ptr;
	139	ptr += align;
	140	return (void *)(((uintptr_t)ptr) & ~align);
	141	}
132	142	#endif
133	143